New Features for DBA’s

Subscribe to Posts by Email


 

Subscriber Count

    699

Disclaimer

All information is offered in good faith and in the hope that it may be of use for educational purpose and for Database community purpose, but is not guaranteed to be correct, up to date or suitable for any particular purpose. db.geeksinsight.com accepts no liability in respect of this information or its use. This site is independent of and does not represent Oracle Corporation in any way. Oracle does not officially sponsor, approve, or endorse this site or its content and if notify any such I am happy to remove. Product and company names mentioned in this website may be the trademarks of their respective owners and published here for informational purpose only. This is my personal blog. The views expressed on these pages are mine and learnt from other blogs and bloggers and to enhance and support the DBA community and this web blog does not represent the thoughts, intentions, plans or strategies of my current employer nor the Oracle and its affiliates or any other companies. And this website does not offer or take profit for providing these content and this is purely non-profit and for educational purpose only. If you see any issues with Content and copy write issues, I am happy to remove if you notify me. Contact Geek DBA Team, via geeksinsights@gmail.com

Pages
«  
  »

12c Database : ASM Enhancements : Increased storage limits

Just to make a note here, (From Jafar notes)

The ASM storage hard limits on maximum ASM disk groups and disk size has been drastically increased.

In 12cR1, ASM support 511 ASM disk groups against 63 ASM disk groups in 11gR2.

Also, an ASM disk can be now 32PB size against 20PB in 11gR2.

Excerpt from the documentation for easy reference. http://docs.oracle.com/cd/E16655_01/server.121/e17612/asmdiskgrps.htm#CHDCGGED

ASM groups, disks, and files:

  • 511 disk groups in a storage system

  • 10,000 Oracle ASM disks in a storage system

  • 1 million files for each disk group

Without any Oracle Exadata Storage, Oracle ASM has the following storage limits if the COMPATIBLE.ASM disk group attribute is set to less than 12.1:

  • 2 terabytes (TB) maximum storage for each Oracle ASM disk

  • 20 petabytes (PB) maximum for the storage system

Without any Oracle Exadata Storage, Oracle ASM has the following storage limits if the COMPATIBLE.ASM disk group attribute is set to 12.1 or greater:

  • 4 PB maximum storage for each Oracle ASM disk with the allocation unit (AU) size equal to 1 MB

  • 8 PB maximum storage for each Oracle ASM disk with the AU size equal to 2 MB

  • 16 PB maximum storage for each Oracle ASM disk with the AU size equal to 4 MB

  • 32 PB maximum storage for each Oracle ASM disk with the AU size equal to 8 MB

  • 320 exabytes (EB) maximum for the storage system

-Thanks

Geek DBA

November 7th, 2013 | Tags: , , , | Category: 12c Database, Automatic Storage Management

Comments are closed.